1998 HONDA CR-V spring

Description
Hydraulic Flow (cont'd)
4th Gear llQ! or E Posirion)
As the speed of the vehicle reaches the prescribed value. shift control solenoid valve A is turned OFF by the pCM,
Shift control solenoid valve B remains OFF. Modulator pressure (6) flows to the left end of the 1-2 shift valve and theleft end of the 3-4 shift valve. Modulator pressure (64) in the left end of the 1-2 shift valve equals modulator pressure(68) in the right end of the 1-2 shift valve. The 1-2 shift valve remains at left side by the tension of the valve spring.The 3-4 shift valve is moved to the right side by modulator pressure (6A). The 3-4 shift valve covers the pon to the 3rdclutch and uncovers the port to the 4th clutch as this valve is moved to the right side, The 4th clutch pressure (41)from the 3-4 shift valve becomes 4th clutch pressure (40) at the manual valve. The 4th clutch pressure (40) is appliedto the 4th clutch, and the 4th clutch is engaged.
Fluid flows by way of:- Line pressure (4) + CPB Valve - Line Pressure (5) + l-2 Shift Valve - Line Pressure {5) * 2-3 Shift Valve- Line Pressure (5) + 3-4 Shift Valve - 4th Clutch Pressure (41) + Manual Valve - 4th Clutch Pressure (40)+ 4th Clutch
The hydraulic pressure also flows to the lst clutch. However, no power is transmitted because of the one-wav clutch.
NOTE:
. When used, "lelt" or " tight" indicates direction on the hydraulic circuit.. The hydrau lic circuit shows the '97 - 98 models (7 positions); the '99 - 0O models (6 oositions) issimilar.
14-36
www.emanualpro.com

Description
Lock-up System (cont'dl
Lock-up Clutch
L Ooeration (clutch on)
With the lock-up clutch on, the fluid in the chamber between the torque convener cover and the lock-uD oiston is drainedoff, and the converter fluid exerts pressure through the piston against the torque converter cover, As a result, the conven-er turbine is locked to the converter cover. This bipasses the converter, placing the vehicle in direct drive.
LOCK,UP PISTON
The power flows by way of:
Engine
+
Drive plate
Torque converter cover
I
Lock-up piston
t
Damper spring
{
Turbine
Mainshaft
IOROUECOVER
Operation (clutch off)
With the lock-up clutch off, the fluid flows in the reverse of "clutch on." As a result, the lock-up piston moves away fromthe converter cover, and the torque converter lock-up is released.
Engine
I
Drive plate
{
Torque converter cover
{
Pump
I
Turbine
{
Mainshaft
TOROUECOVER
To ATF cooler{(1\\n1INLET
t
Jtl
ort
MAIf{SHAFT
MAII{SHAFT
14-40
www.emanualpro.com

TOROUE CONVERTER
No Lock-up
. Lock-up Control Solenoid Valve A: OFF
. Lock-up Control Solenoid Valve B: OFF
. Linear Solenoid Pressure: High
The pressurized fluid regulated by the modulator works
on both ends of the lock-up shift valve. Under this condi-
tion, the pressures working on both ends of the lock-up
shift valve are equal. and the lock-up shift valve is
moved to the right side by the tension of the valve
spring. Fluid trom the ATF pump will flow through the
left side of the lock-up clutch to the torque converter; the
lock-up clutch is OFF.
NOTE: When us€d, "|eft" and "right" indicates direction
on the hydraulic circuit.
+ LINEAR SOLENOID PRESSURE
(cont'd)
LOCK.UP CONTROLSOI-ENOID VALVE
MOOULATORPRESSURE
MAINSHAFT
COUNTERSHAFTRELIEF VALVE
LOCK-UP TIMINGVALVE
i COOLER RELIEF VALVE
ATF STRAINERATF COOLER
ATF PUMP
14-41
www.emanualpro.com

Description
Lock-up System (cont'dl
a
a
Half Lock-up
Lock-up Control Solenoid Valve A: ON
Lock-up Control Solenoid Valve B: Duty Operation
OFF - ON
Linear Solenoid Pressure: Low
The PCM switches solenoid valve A on to release modu-
lator pressure in the left cavity of the lock-up shift valve.
Modulator pressure in the right cavity of the lock-up
shift valve overcomes the spring force, and the lock-up
shift valve is moved to the left side.
Line pressure is then separated into the two passages to
the torque converter; torque converter inner pressure
enters into right side to engage the lock-up clutch, and
torque convener back Dressure enters into left side to
disengage the lock-up clutch.
Back pressure (F2) is regulated by the lock-up control
valve, whereas the position of the lock-up timing valve
is determined by linear solenoid pressure and tension of
the valve spring. Also the position of the lock-up control
valve is determined by the back pressure of the lock-up
control valve. torque converter pressure (regulated by
the torque converter check valve), and modulator pres-
sure (determined by the lock-up control solenoid valve
B). The PCM switches lock-up control solenoid valve B
on and off rapidly (duty operation), under certajn condi-
tions, to regulate back pressur€ (F2) and lock the torque
convertef.
NOTE: When used, "left" and "right" indicates direction
on the hvdraulic circuit.
+ LINEAR SOLENOID PRESSURE
TOFOUE CONVERTER
L(rcK.UP CONTROLSOLENOID VALVE
AB
MODULATORPNESSURE
MAINSHAFT
COUNIERSHAFTRELIEF VALVE
L(rcK-UP TIMINGVALVE
COOLER RELIEF VALVE
ATF STRAINER
14-42
ATF COOLER
ATF PUMP
www.emanualpro.com

TOROUE CONVEFTER
Full Lock-up
. Lock-up Control Solenoid Valve A: ON
. Lock-up Control Solenoid Valve B: ON
. Linear Solenoid Pressure: High
When the vehicle speed further increases, linear
solenoid pressure increases to high in accordance with
the linear solenoid which is controlled by the PCM.
The lock up timing valve overcomes the spring force
and moves to the left side. Also, this valve closes the
fluid port leading to the left side of the lock-up control
valve.
Under this condition, modulator pressure in the left side
of the lock-up control valve had already been released
by the lock-up control solenoid valve B; the lock-up con-
trol valve is moved to the left side. As this takes place,
torque converter back pressure is released fully, causing
the lock-up clutch to be engaged fully.
NOTE: When used. "left" and "right" indicates direction
on the hydraulic circuit.
+ LINEAR SOLENOIO PRESSURE
(cont'd)
LOCK-UP CONTROLSOLENOID VALVE
MODULATORPRESSURE
MAINSHAFT
COUNTERSHAFT
SUB-SHAFT
RELIEF VALVE
LOCK.UP TIMINGVALVE
COOLER BELIEF VALVE
ATF STRAINERATF COOLER
ATF PUMP
14-43
www.emanualpro.com

The following symptom can be caused
by improper repair or assemblYCheck these items
. lmproper clutch clearance
. lmproper gear clearance
One-way (sprag) clutch installed upside down
Park lever installed upside down
Shift fork bolt not installed
Vehicle creeps in N position.
Vehicle does not move in E, [D.lj, or E
position.
Transmission locks up in E position.
Excessive drag in transmission.ATF pump binding and seizure
Use proper tools when replacing the ATF pump gears, and be careful
to damage the ATF pump when torque down the main valve body.
Check that the shift fork bolt is installed on the shift fork shaft
not
Excessive vibration, rpm related.Torque converter not fully seated in ATF pump
Reverse selector hub installed upside downNoise only with wheels moving.
Mainshaft oil seal po9s out.Mainshaft oil seal improperly installed
lnstallthe mainshaft oil seal tlush with the torque converter housing lf
the mainshaft oil seal is installed into the torque converter housing until
it bottoms. it will block the fluid return passage and result in damage
Various shifting problems.. Springs improperly installed
. Valves improperly installed
Harsh upshift.Check valve balls not installed
(cont'd)
4-155
www.emanualpro.com

O END COVER
O olL SEAL Replace.
O BALL BEARING
@ A/T GEAR PoSITIoN swITcH coVER
€) A/T GEAn PosrloN swrrcH
@ ROLLER
O coLLARG) o-RING Replace.{9) FEED PIPE FLANGE
@ O-RING Replace.
O SNAP RING
@ 3RD CLUTCH FEED PIPE(D CoUNTERSHAFT LOCKNUT 23 x 1.25 mm Replace.(} coNtcAL SPR|NG WASHER Reptace.
@ PARK GEAR@ ONE.WAY CLUTCH(, COUNTENSHAFT lST GEAR(D NEEOLE BEARING(O COUNTERSHAFT lST GEAR COLLAR
@ o-RING Reptace.
@ lST CLUTCH FEED PIPE
@ O-RING Reptace.
@} FEEO PIPE FLANGE
@ SNAP RING
@ DOWEL PIN
@ END coVER GASKET Feplace.
@ PARK PAWL SToP@ PARK PAWL
@ PARK PAWL SPRING
@ PARK PAWL SHAFT
O} A/T GEAR POSITION SWITCH HARNESS CLAMP
@ PARK LEVER
@ LOCK WASHER Replace.
@ PARK STOP Selective part
@ PARK LEVER SPRING@ DRAIN PLUG
O SEALING WASHER Reptace.
@) MAINSHAFT LOCKNUT2l x 1.25 mm Replace.@ CONICAL SPRING WASHER Replace.@ lST CLUTCH ASSEMBLY
TOROUE SPECIFICATIONS
i!, O-RING Replace.
@ THRUST WASHER
@ THRUST NEEDLE BEARING@ NEEDLE BEARING
@ MAINSHAFI 1ST GEAR@ MAINSHAFT 1sT GEAR coLLAR
@ o-RING Replace.
6!, COUNTERSHAFT SPEED SENSOR@ ROLLER
@) COLLAR@ o-RtNG Replace.
6A FEEo PIPE FLANGE
@ o-RtNG Reptace.
@ SNAP R|NG
@ IST.HOLD cLUTcH FEED PIPE@ SUB-SHAFT LOCKNUT 19 x 1,25 mm Reptace.O coNtCAL SPR|NG WASHER Reptace.E! SUB.SHAFT lST GEAR€} LINEAR SOLENOID ASSEMBLY
@ LTNEAR soLENotD aSSEMBLy GASKET Reptace.
@ HARNESS BBACKET
@ SEALING WASHERS Feptace.
@ ATF COOLER LINE
@ LIN€ BoLT
@ ATF DIPSTICK
@ ATF COOLER LINE
@ LINE BoLT@ SEALING WASHERS Reptace.@ VEHICLE SPEED sENsoR (vss)
@ o-RtNG Beptace.
Bolt/Nut No.Torque ValuoSizeRemarks
6B
8A
12J
18D
19S
21M
23C
'12 N'm ('1.2 kgf.m,8.7 lbf.ft)
14 N.m (1.4 kgf.m, 10lb{.ft}
22 N.m 12.2 kgf.m, 16 lbf.ft)
28 N'm (2.9 kgf.m,21 lbf.ft)
49 N.m (5.0 kgf.m,36 lbf'ft)
93 N'm {9,5 ksim.69 lbf.ft)
78 N.m {8.0 kgnm,58 lbf.ft)
103* 0- 103 N{n {10.5* 0+ 10.5 kgfn,
75.9-0-75.9 lbf{t)
6x 1.0 mm
6x1.0mm
8 x 1.25 mm
12 x 1.25 mm
18 x 1.5 mm
19 x 1.25 mm
21 x 1.25 mm
23 x 1.25 mm
Line bolt
Drain plug
Sub-shaft locknut
Mainshaft locknut: Left-hand threads
Countershaft locknut: Left-hand
threads
14-175
www.emanualpro.com

oa;\,6
G)!o,
a@,6
@o(a
@(}
@a@@@@@@@6@@)@@@@@@@@@@@@@
ATF FEED PIPE,8 x 145 mmATF STRAINERSERVO BODYSERVO SEPARATOR PLATESECONDARY VALVE EODYDOWEL PINSECONDARY SEPARATOR PLATESERVO DETENT BASE ('97 - 98 model3 onlylATF FEED PIP€, 8 x 145 mmATF FEED PIPE,8 x 40 mmATF FEED PIPE. 8 x 62 mmATF FEED PIPE.8 x 112 mmATF FEED PIPE, 8 x 192.5 mmATF FEEO PIPE. I x 105.8 mmSTOP SHAFT BRACKETATF LUBRICATION PLATEATF FEEO PIPEDOWEL PINLOCK-UP VALVE EODYLOCK-UP SEPARATOR PLATEREGULATOR VALVE BODYDOWEL PINCOOLER RELIEF VALVE SPRINGCOOLER RELIEF VALVETOROUE CONVERTER CHECK VALVE SPRINGTOROUE CONVERTER CHECK VALVECONTROL SHAFTOETENT ARM SPRINGOETENT ARMDETENT ARM SHAFTFILTER Replace.CHECK BALLSlST ACCUMULATOR CHOKEO"RING Replace.STATOR SHAFTSTOP SHAFTATF FEED PIPE, I x 112 mmMAIN VALVE BOOYATF PUMP DRIVEN GEAR SHAFTATF PUMP DRIVEN GEAR
TOROUE SPECIFICATIONS
MAIN SEPARATOR PLATEDOWEL PINATF PUMP DRIVE GEARSUCTION PIPE COLLARCOUNTERSHAFT TOROUE CONVERTER HOUSINGBEARINGATF GUIDE PLATELOCK WASHER Replace.CONTROL LEVER ASSEMBLYTOROUE CONVERTER HOUSINGCHANGE SHAFTOIL SEAL Reolace.MAINSHAFT OIL SEAL Reolace.MAINSHAFT TOROUE CONVERT€R HOUSINGBEARINGLOCK.UP CONTROL SOLENOID VALVE A/BFILTER/GASKET Replace.LOCK.UP CONTROL SOLENOID VALVE A/BASSEMBLY
@@@@@
@@@@@@@@
@
@
Bolt/Nut No.Torque ValugSizeRomarks
64
6B
12 N'm (1.2 kgf.m,8.7 lbf.ft)
14 N.m (1.4 kgf.m, 10 lbf.ft)
6x1.0mm
6x1.0mm
14-179
www.emanualpro.com